Exact solutions of a (2+1)-dimensional extended shallow water wave equation

Yuan Feng¹, He Jing-Song^{2, †}, Cheng Yi¹

Two-soliton with α = − 1 / 2 , t = 0, p 1 = 1 / 2 , η 1 0 = − 5 , p 2 = 2 / 3 , η 2 0 = 10 . (a) Dark soliton: v [ 2 ] with k 1 = 3 / 4 , k 2 = 4 / 5 ; (b) Mixed soliton: v [ 2 ] with k 1 = − 3 / 4 , k 2 = 4 / 5 ; (c) Bright soliton: v [ 2 ] with k 1 = − 3 / 4 , k 2 = − 4 / 5 ; (d) Dark soliton: r [ 2 ] with k 1 = 3 / 4 , k 2 = 4 / 5 .